Key features

• •16-300Ω HiFi Headphone Amplifier - 3.5mm AUX input and output. Supports most headphones of high impedance 16-300Ω, signal-to-noise ratio≥ 120Db, THD + N = 0.0004%, make it possibility to output not just louder sound, but a sharper and more real stereo sound without distortion.
• •Rechargeable Lithium Battery - Upgrade Chips add Low Power Consumption technology supports headphone amp working 15 hours; Volume control knob for volume adjustment; Charging Indicator for power checking.
• •Gain Switch - Two-Stage Gain switch for matching output to headphone power needs. Output Power: 35mW in Impedance 32Ω. Adapted Headphone Impedance: 16-300Ω, for high impedance headphon
• •Portable Headphone Amplifier - Compact, lightweight, and portable design allow you to carry; The aluminum matte surface and fashion design provide you a comfortable handheld feeling.
• •Universal Compatibility - Can remarkably compatible with various digital devices, such as MP3 Players, iPods, personal media players, mobile phones, laptops, portable cd players, 3.5mm headphones, earphones, etc.